Miniature Circuit Breakers work on the principle of ___.
chemical effect of current
heating effect of current
magnetic effect of current
destruction of energy
An MCB which cuts off the electricity supply in case of short-circuiting or overloading works on the :
(a) chemical effect of current
(b) heating effect of current
(c) magnetic effect of current (d) electroplating effect of current
A d.c generator is based on the principle of :
(a) electrochemical induction (b) electromagnetic induction
(c) magnetic effect of current (d) heating effect of current
Name one device which works on the principle of magnetic effect of current.